BEAM CONTROL METHOD, DEVICE AND ELECTRONIC APPARATUS FOR INTELLIGENT SURFACE DEVICE

Abstract

The present application discloses a beam control method, apparatus and electronic device for an intelligent surface device, belonging to the field of mobile communications. The beam control method for an intelligent surface device according to an embodiment of the present application includes the steps of: a network side device acquiring first channel information of an active unit of an intelligent surface device, where the first channel information is channel information between the network side device and the active unit; acquiring second channel information of the active unit, where the second channel information is channel information between a terminal and the active unit; and determining control information of a unit array of the intelligent surface device based on the first channel information and the second channel information, where the unit array includes an active unit and a passive unit of the intelligent surface device.

Description

[Technical field]

[0001] (CROSS REFERENCE TO RELATED APPLICATIONS) This application claims priority to a Chinese patent application filed on May 7, 2021, bearing application number 202110497334.4 and entitled "Beam control method, apparatus and electronic device for intelligent surface equipment," the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the technical field of mobile communication, and in particular to a beam control method, device and electronic device for intelligent surface devices. [Background technology]

[0003] Special wireless auxiliary devices in the wireless environment (e.g. repeaters, backscatters, new devices / large intelligent surfaces, satellites) have the ability to change their own electromagnetic parameters, thus affecting the channel conditions between the communication devices. As the electromagnetic parameters and hardware characteristics of these special devices change, the Signal-to-Noise and Interference Ratio (SINR) or channel response changes, and the channel response is updated accordingly.

[0004] On the other hand, since large intelligent surface devices consist of a large number of passive units and cannot transmit related reference signals, it is difficult for base stations and terminals to directly obtain channel information corresponding to each surface unit of the large intelligent surface devices, and accurate beam control for the intelligent surface devices is not possible. Summary of the Invention [Problem to be solved by the invention]

[0005] The embodiments of the present application provide a beam control method, device and electronic device for an intelligent surface device, which can solve the problem of inability to perform accurate beam control for an intelligent surface device. [Means for solving the problem]

[0006] In a first aspect, there is provided a beam control method for an intelligent surface device applied to a network side device, comprising: A network side device acquires first channel information of an active unit of an intelligent surface device, the first channel information being channel information between the network side device and the active unit; The network side device acquires second channel information of an active unit of an intelligent surface device, the second channel information being channel information between a terminal and the active unit; The method includes a step of the network side device determining control information of a unit array of the intelligent surface device based on the first channel information and the second channel information, the unit array including an active unit and a passive unit of the intelligent surface device.

[0007] In a second embodiment, A first measurement module for obtaining first channel information of an active unit of an intelligent surface device, the first channel information being channel information between the network side device and the active unit; A second measurement module for the network side device to obtain second channel information of an active unit of an intelligent surface device, the second channel information being channel information between a terminal and the active unit; The present invention provides a beam control device for an intelligent surface device, comprising: a control module for the network side device to determine control information of a unit array of the intelligent surface device based on the first channel information and the second channel information, the unit array including active units and passive units of the intelligent surface device.

[0008] In a third aspect, there is provided a beam control method for an intelligent surface device applied to a terminal, comprising: When an active unit of the intelligent surface device supports signal transmission, the terminal acquires a second reference signal transmitted from the active unit; When an active unit of the intelligent surface device supports signal reception, the terminal transmits a fourth reference signal to the active unit; The method provides a method in which the second reference signal or the fourth reference signal is for acquiring second channel information of the active unit, the second channel information being channel information between the terminal and the active unit, the second channel information being for determining control information of a unit array of the intelligent surface device in cooperation with the first channel information, the unit array including an active unit and a passive unit of the intelligent surface device, and the first channel information being channel information between a network side device and an active unit.

[0009] In a fourth aspect, A first acquisition module for acquiring a second reference signal transmitted from an active unit of the intelligent surface device when the active unit supports signal transmission; A second acquisition module for transmitting a fourth reference signal to an active unit of the intelligent surface device when the active unit supports signal reception; The second reference signal or the fourth reference signal is for acquiring second channel information of the active unit, the second channel information being channel information between the terminal and the active unit, the second channel information being for determining control information of a unit array of the intelligent surface device in cooperation with the first channel information, the unit array including an active unit and a passive unit of the intelligent surface device, and the first channel information being channel information between a network side device and an active unit, a beam control device for an intelligent surface device is provided.

[0010] In a fifth aspect, there is provided a beam control method for an intelligent surface device, the method being applied to an intelligent surface device, comprising: A step of an intelligent surface device performing a channel measurement by an active unit and a network side device, the channel measurement by the active unit and the network side device is performed to obtain first channel information of the active unit, and the first channel information is channel information between the network side device and the active unit; A step of performing a channel measurement by the intelligent surface device with an active unit and a terminal, the channel measurement by the active unit and the terminal is performed to obtain second channel information, and the second channel information is channel information between the terminal and the active unit; The method includes a step of an intelligent surface device acquiring control information of a unit array, the control information being acquired based on first channel information and second channel information, the unit array including an active unit and a passive unit of the intelligent surface device.

[0011] In a sixth aspect, A first communication module for performing channel measurement by an active unit and a network side device, the channel measurement by the active unit and the network side device is performed to obtain first channel information of the active unit, and the first channel information is channel information between the network side device and the active unit; A second communication module for performing channel measurement by an active unit and a terminal, the channel measurement by the active unit and the terminal being performed to obtain second channel information, the second channel information being channel information between the terminal and the active unit; The present invention provides a beam control device for an intelligent surface device, comprising: an execution module for acquiring control information of a unit array, the control information being acquired based on first channel information and second channel information, the unit array including active units and passive units of the intelligent surface device.

[0012] In a seventh aspect, there is provided a network side device including a processor, a memory, and a program or command stored in the memory and executable on the processor, the program or command realizing the steps of the method according to the first aspect when executed by the processor.

[0013] In an eighth aspect, there is provided a terminal comprising a processor, a memory, and programs or commands stored in the memory and executable on the processor, the programs or commands, when executed by the processor, realizing steps of the method according to the third aspect.

[0014] In a ninth aspect, there is provided a readable storage medium having stored thereon a program or commands which, when executed by a processor, realise the steps of the method according to the first aspect, or the steps of the method according to the third aspect, or the steps of the method according to the fifth aspect.

[0015] In a tenth aspect, there is provided a chip comprising a processor and a communications interface, the communications interface and the processor being coupled, the processor executing programs or commands to effectuate steps of the method of the first aspect, or steps of the method of the third aspect, or steps of the method of the fifth aspect.

[0016] In an eleventh aspect, there is provided a computer program / program product stored on a non-transitory storage medium and executed by at least one processor to realise the steps of the method according to the first aspect, or the steps of the method according to the third aspect, or the steps of the method according to the fifth aspect. Effect of the Invention

[0017] In an embodiment of the present application, the network side equipment obtains the first channel information and the second channel information of the active unit of the intelligent surface device, and then determines the control information of the unit array of the intelligent surface device based on the first channel information and the second channel information, thereby improving the efficiency of channel measurement, realizing accurate beam control for the intelligent surface device, and supporting the generation of complex intelligent surface device transmission beams in multi-terminal and multi-base stations. [Brief description of the drawings]

[0018] [Figure 1] 1 shows a structural schematic diagram of a wireless communication system to which the embodiments of the present application can be applied; [Diagram 2] 1 shows a flowchart of a beam control method for an intelligent surface device according to an embodiment of the present application. [Diagram 3] 1 shows a flowchart of a beam control method for another intelligent surface device according to an embodiment of the present application. [Figure 4]1 shows a schematic diagram of a channel estimation method for a passive unit in a beam control method for an intelligent surface device according to an embodiment of the present application; [Diagram 5] 1 shows a flowchart of a beam control method for another intelligent surface device according to an embodiment of the present application. [Figure 6] 1 shows a structural schematic diagram of a beam control device of an intelligent surface device according to an embodiment of the present application; [Figure 7] 1 shows a flowchart of a beam control method for another intelligent surface device according to an embodiment of the present application. [Figure 8] FIG. 2 shows a structural schematic diagram of a beam control device of another intelligent surface device according to an embodiment of the present application. [Figure 9] 1 shows a flowchart of a beam control method for another intelligent surface device according to an embodiment of the present application. [Figure 10] FIG. 2 shows a structural schematic diagram of a beam control device of another intelligent surface device according to an embodiment of the present application. [Figure 11] 1 shows a structural schematic diagram of a communication device provided in an embodiment of the present application. [Figure 12] FIG. 2 is a structural schematic diagram of a terminal for implementing an embodiment of the present application; [Figure 13] FIG. 2 is a structural schematic diagram of a network side device for implementing an embodiment of the present application; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] Hereinafter, the technical solutions in the embodiments of the present application will be clearly described with reference to the drawings in the embodiments of the present application, and it is to be understood that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application are within the scope of protection of the present application.

[0020] The terms "first", "second", etc. in the specification and claims of the present application are not intended to describe a particular order or sequence, but are intended to distinguish between similar objects. It should be understood that the terms used in this manner may be substituted for each other where appropriate, so that the embodiments of the present application may be performed in an order other than that shown or described herein, and that the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited, for example, the first object may be one or more. In the specification and claims, "and / or" indicates at least one of the connected objects, and the symbol " / " generally indicates that the related objects before and after are in an "or" relationship.

[0021] It should be noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the techniques described can be used in other systems and wireless technologies in addition to those mentioned above. Although the following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in much of the following description, these technologies may be used in other systems and wireless technologies, such as 6th Generation (6G) and 7th Generation (7G) systems. thThe present invention can also be applied to applications other than NR system applications, such as 6G (Generation, 6G) communication systems.

[0022] FIG. 1 shows a structural schematic diagram of a wireless communication system to which the embodiments of the present application can be applied. The wireless communication system includes a terminal 11, a network side device 12, and an intelligent surface device 13. The terminal 11 may be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a terminal side device such as a mobile phone, a tablet computer, a laptop computer also called a notebook computer, a personal digital assistant (PDA), a personal digital assistant, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (Mobile Internet Device, MID), a wearable device, or a vehicle-mounted device (VUE), a pedestrian terminal (PUE), and the wearable device includes a smart watch, a wristband, an earphone, a pair of glasses, and the like. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network side equipment 12 may be a base station or a core network, in which the base station may be called an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting receiving point (TRP), or any other suitable term in the above field, and as long as the same technical effect can be achieved, the base station is not limited to a specific technical term. It should be noted that the embodiments of this application only take a base station in an NR system as an example, but the specific type of the base station is not limited.The network side equipment 12 may include access network equipment or core network equipment, among which the access network equipment 12 may be called radio access network equipment, radio access network (Radio Access Network, RAN), radio access network function or radio access network unit. The access network equipment 12 may include a base station, a WLAN access point or a WiFi node, etc., and the base station may be called a Node B, an evolved Node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a Basic Service Set (Basic Service Set, BSS), an Extended Service Set (Extended Service Set, ESS), a Home B node, a Home evolved B node, a Transmitting Receiving Point (Transmitting Receiving Point, TRP) or any other suitable term in the field, and the base station is not limited to a specific technical term as long as the same technical effect can be achieved, and it should be explained that the embodiment of this application only takes a base station in an NR system as an example, but the specific type of the base station is not limited.The core network devices are: Core Network Node, Core Network Function, Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF) unit, Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (Local NEF or L-NEF), Binding Support Function (BSF), Application Function (Application Repository ... The present invention may include, but is not limited to, at least one of the following: A-F (Automatic Frequency Division Multiplexing) Function (AF), etc. It should be noted that, although the embodiments of the present application will be described using only the core network device in the NR system as an example, the specific type of the core network device is not limited.The intelligent surface device 13 may be a large intelligent surface (LIS) or a reconfigurable intelligent surface (RIS), and the following embodiments will take the RIS as an example. The RIS can dynamically / semi-permanently change its own electromagnetic properties to affect the reflection / refraction behavior of the electromagnetic wave incident on the RIS. The RIS realizes functions such as beam sweeping / beam forming by controlling the reflected / refracted electromagnetic waves. The working principle and device structure of the RIS are as follows: The RIS is composed of a front-end artificial surface and a back-end control module. The front-end artificial surface is composed of densely arranged artificial device units, and the device properties of the device units are affected by the control signal / bias voltage of the device, and different control signal / bias voltages correspond to different reflection coefficients / refractive coefficients. The change in the reflection coefficient / refractive coefficient affects the phase and / or intensity of the reflected signal / refracted signal. Microscopically, each device unit provides an independent reflection / refracted signal, and macroscopically, these signals are overlapped to realize the control of the electromagnetic wave. The control signals / bias voltages are provided by a back-end control module.

[0023] The beam control method for an intelligent surface device provided in the embodiments of the present application will be described in detail below with reference to the drawings according to several embodiments and application scenarios thereof.

[0024] 2 shows a flow chart of a beam control method of an intelligent surface device according to an embodiment of the present application, and as shown in FIG. 2, the method can be executed by a network side device, in other words, the method can be executed by software or hardware installed in the network side device. The method may be executed in the following steps 201 to 203.

[0025] In step S201, a network side device obtains first channel information of an active unit of an intelligent surface device, where the first channel information is channel information between the network side device and the active unit.

[0026] The intelligent surface device according to the embodiment of the present application includes a unit array of device units, which may include active units and passive units. The number and location of the active units in the unit array may be set according to actual requirements, and may be sparsely arranged.

[0027] In step S202, the network side device obtains second channel information of an active unit of an intelligent surface device, where the second channel information is channel information between a terminal and the active unit.

[0028] In step S203, the network side device determines control information of a unit array of the intelligent surface device according to the first channel information and the second channel information, where the unit array includes an active unit and a passive unit of the intelligent surface device.

[0029] For an intelligent surface device including an active unit and a passive unit, the beam control method according to the embodiment of the present application is divided into two stages: a first stage which is a channel measurement stage based on the active unit, and a second stage which is a beam control stage of the intelligent surface device. In the first stage, channel measurement is performed based on the active unit according to the information transmission and reception function of the active unit of the intelligent surface device, and channel information of each active unit in the intelligent surface device can be obtained, including first channel information between the active unit and a network side device and second channel information between the active unit and a terminal. In the second stage, beamforming is performed on the intelligent surface device based on the obtained channel information, and control information of the unit array of the intelligent surface device is obtained. The control information may include the operation state of each unit in the unit array.

[0030] The control information can determine the analog transmission beam configuration of the intelligent surface device, and then, through channel measurement between the base station and the terminal, the beamforming configuration between the base station and the terminal can be determined.

[0031] Steps S201 and S202 may be performed in any order, may be performed simultaneously, or may be performed separately according to their corresponding measurement periods. In the embodiments of the present application, only an example in which step S201 comes first and step S202 comes last will be described.

[0032] In one embodiment, since the positions of the network side device and the RIS device are relatively fixed and the channel change is slow, the first measurement period for acquiring the first channel information may be relatively long, and the second measurement period for acquiring the second channel information may be relatively short, specifically, may be determined according to the moving speed of the terminal and the change in the environment. For example, the second measurement period may be set by referring to the channel state information (CSI) measurement period of the terminal, or may be an integer multiple of the CSI measurement period. A plurality of second measurement periods may be included in the first measurement period, and a plurality of terminals in different directions are measured.

[0033] Therefore, an embodiment of the present application provides a beam control method for an intelligent surface device, in which a network side device obtains first channel information and second channel information of an active unit of an intelligent surface device, and then determines control information of the unit array of the intelligent surface device based on the first channel information and the second channel information, thereby improving the efficiency of channel measurement, realizing accurate beam control for the intelligent surface device, and supporting the generation of complex intelligent surface device transmission beams in multi-terminal and multi-base stations.

[0034] FIG. 3 shows a flow chart of another beam control method of an intelligent surface device according to an embodiment of the present application, and as shown in FIG. 3, the method can be executed by a network side device, in other words, the method can be executed by software or hardware installed in the network side device. The active unit of the intelligent surface device may have various types, and may be an active unit with the function of signal transmission and / or reception. Among them, when the active unit supports signal transmission, that is, when the active unit is an active unit with a signal transmission function, or an active unit supporting the functions of signal transmission and reception, the method may be executed in the following steps 301 to 305.

[0035] In step S301, a first reference signal transmitted from the active unit is received.

[0036] In step S302, first channel information of the active unit is obtained by channel measurement for the first reference signal.

[0037] In one embodiment, when the active unit supports signal transmission, the active unit may transmit a first reference signal to a network side device, and the network side device performs channel measurement based on the received first reference signal to obtain first channel information of the active unit.

[0038] A parameter of the first reference signal may be set by the network side device.

[0039] In step S303, second channel information transmitted from the terminal is received, where the second channel information is obtained by the terminal through channel measurement on a second reference signal, and the second reference signal is transmitted from the active unit to the terminal.

[0040] In one embodiment, when the active unit supports signal transmission, a second reference signal may be transmitted from the active unit to a terminal, and the terminal may perform channel measurement based on the received second reference signal, obtain second channel information of the active unit, and transmit the second channel information to a network side device.

[0041] The parameters of the second reference signal may be set by the network side device, and the set parameters may be notified to the terminal, specifically, may be carried in information such as Downlink Control Information (DCI), Medium Access Control Control Element (MAC CE), or Radio Resource Control (RRC).

[0042] The configuration parameters of the first reference signal and the second reference signal set by the network side device may specifically include parameters such as time-frequency resources of the reference signals, reference signal sequences and ports, and precoding.

[0043] The first and second reference signals may employ various types of reference signals, and in one embodiment, the reference signals are: Synchronization Signal and PBCH block (SSB), A channel state information reference signal (CSI-RS), A Demodulation Reference Signal (DMRS), which may be a DMRS for a physical downlink shared channel (PDSCH), a physical downlink control channel (PDCCH), or a physical uplink shared channel (PUSCH), i.e., a DMRS for PDSCH, a DMRS for PDCCH, or a DMRS for PUSCH; Position Reference Signal (PRS), A sounding reference signal (SRS), A Physical Random Access Channel Reference Signal (PRACH) reference signal; a side link reference signal; and and a dedicated reference signal for measuring the intelligent surface device channel, which may include a dedicated first reference signal and / or a dedicated second reference signal.

[0044] The first reference signal transmitted to the network side device and the second reference signal transmitted to a different terminal may be distinguished by different ports, and in one embodiment, the reference signals are distinguished in at least one of the following ways:

[0045] The reference signals may be time division multiplexed, for example, by transmitting each on a different OFDM symbol. Frequency division multiplexing may be used, for example by transmitting each reference signal on different frequency domain resources on the same OFDM symbol. Code division multiplexing, for example using a different sequence to generate each reference signal. In space division multiplexing or beam sweeping, the active unit may transmit a first reference signal and / or a second reference signal in the manner of beam sweeping or beam training, and the network side equipment and the terminal respectively select the beam with the highest signal quality as the communication beam through channel measurement, and obtain the first channel information and the second channel information.

[0046] Optionally, the frequency bandwidth of the first reference signal and the second reference signal is the same.

[0047] In step S304, third channel information and fourth channel information of a passive unit of the intelligent surface device are obtained according to the first channel information and the second channel information, where the third channel information is channel information between the network side device and the passive unit, and the fourth channel information is channel information between the terminal and the passive unit.

[0048] In one embodiment, the network side device may perform channel estimation for the passive units in the RIS device based on the first channel information and the second channel information of the active units of the RIS device, to obtain the third channel information and the fourth channel information of each passive unit.

[0049] To obtain the third channel information and the fourth channel information of the passive unit, various estimation methods can be adopted. In one embodiment, based on the first channel information and the second channel information, the third channel information and the fourth channel information of the passive unit of the intelligent surface device are obtained by an interpolation algorithm. Specific examples of the interpolation algorithm are as follows.

[0050] FIG. 4 includes a network-side device 410, a terminal 420, and a RIS device 430. Among them, the RIS device 430 includes an active unit 431 and a passive unit 432 represented by different patterns. Through channel measurement, the first channel information H B,i and the second channel information H i,U of the active unit i, and the first channel information H B,j and the second channel information H j,U of the active unit j are respectively obtained. By performing channel estimation on the passive unit k between the active units i and j based on H B,i , H i,U , H B,j and H j,U , the third channel information H B,k and the fourth channel information H k,U of the passive unit k can be obtained. Specifically, it may be obtained by an interpolation algorithm. For example, using the linear interpolation algorithm, H B,k =1 / 2(H B,i +H B,j ) and H k,U =1 / 2(H i,U +H j,U ) can be obtained. The interpolation algorithm includes, for example, Wiener filtering, non-linear interpolation, etc., and is not specifically limited here.

[0051] Similarly, as shown in Figure 4, when the intelligent surface performs channel estimation in the manner of beam sweeping, the first channel information represents the energy intensity of each beam of the active unit of the intelligent surface received by the network side device, and the second channel information represents the energy intensity of each beam of the active unit of the intelligent surface received by the terminal device. The network side device selects a beam corresponding to one or more measurement results with the strongest energy as a beam from the network side device to the intelligent surface based on the first channel information, and selects a beam corresponding to one or more measurement results with the strongest energy as a beam from the terminal device to the intelligent surface based on the second channel information. Based on the beam codebook of the active unit of the intelligent surface, the relative phase relationship between the channels of each active unit, i.e., H B,i and H B,j Phase difference with H i,U and H j,U Furthermore, in the cascade channel, the phase difference between the network side device, the active unit of the intelligent surface, and the terminal device is determined. B,i *H i,U and H B,j *H j,U The phase difference between the network side device, the passive unit of the intelligent surface, and the terminal device can be determined by an interpolation algorithm. The control information of the intelligent surface is calculated based on the phase difference between the cascaded channels.

[0052] In one embodiment, the first channel information and the second channel information may specifically be the correlation between channels of each active unit, for example, the channel measurement results of the active units obtained by beam sweeping or beam training. Similarly, the third channel information and the fourth channel information of the passive units estimated using an interpolation algorithm may also be the correlation between channels of each passive unit.

[0053] In one embodiment, when the RIS device accesses the cell, a synchronization procedure is completed, and after synchronizing the time and frequency with the network side device, the method includes: The method further includes obtaining device parameters reported from the intelligent surface device, the device parameters including at least one of the following:

[0054] The device types may include pure passive RIS devices that include only passive units, pure active RIS devices that include only active units, and active-passive hybrid RIS devices that include active and passive units. Equipment size. The type of active unit. The location of the active unit. The number of active units. The capabilities of an active unit, including supporting only signal reception, supporting only signal transmission, or supporting simultaneous signal transmission and reception. The capability of the passive unit includes the type of the passive unit, such as a phase control type and an amplitude control type, and may also include the quantification precision of the control parameters of the passive unit, such as the bit length of the control information that controls the state of the passive unit. For example, the passive unit is a phase control type RIS unit, and the state of the RIS unit is controlled by 1-bit control information. The system may recognize that the control information "0" corresponds to the phase of the reflected signal being continuous with the phase of the incident signal, and the control information "1" corresponds to the phase of the reflected signal being 180 degrees out of phase with the incident signal, or the phase of the reflected signal corresponding to the control information "0" is 180 degrees out of phase with the reflected signal corresponding to the control information "1".

[0055] In step S305, control information of a unit array of the intelligent surface device is obtained according to the third channel information and the fourth channel information.

[0056] In one embodiment, the network side equipment obtains the control information of the unit array of the RIS equipment based on the channel information of each device unit, including the channel information of the active unit and the passive unit, or based only on the channel information of the passive unit, to obtain a target transmission beam in the RIS equipment. The target transmission beam may be a single beam directed to a terminal or a group of terminals, or may be a multi-directional beam directed to multiple terminals or multiple groups of terminals in various directions.

[0057] In one embodiment, after step S305, the method further comprises: The method further includes sending control information of the unit array, the control information including the working status of each passive unit of the intelligent surface device, to the intelligent surface device, the control information being carried in DCI, MAC CE or RRC.

[0058] In one embodiment, after determining the initial beam of the RIS device based on the control information of the acquired unit array, the beam of the RIS device may be further fine-tuned. The network side device may arrange several finer beams for the RIS device in the control information to be transmitted, and the finer beams refer to beams with different beam phases or beam directions, and specifically can be obtained by appropriate correction based on the initial beam. The network side device may further arrange time parameters of beam fine-tuning for the RIS device, including multiple time units, each of which corresponds to one of the finer beams. For beam fine-tuning, the network side device may set corresponding beam measurement setting information for the terminal, including reference signal time frequency resources, port numbers, etc. The network side device or the terminal transmits a reference signal, and the terminal or the network side device receives the reference signal and performs beam measurement, and determines an appropriate finer beam based on the measurement result.

[0059] In another embodiment, the network side device may send parameter requirements to the intelligent surface device, the parameter requirements being for the intelligent surface device to determine the working state of each passive unit of the intelligent surface device; Here, the parameter requirement is: The beam direction, A channel measurement result between the base station and the terminal; and the power and phase relationships of the multiple beams.

[0060] The intelligent surface device may obtain control information of the unit array of the RIS device to obtain a target transmission beam in the RIS device based on the channel information of each device unit, including the channel information of the active unit and the passive unit, or based only on the channel information of the passive unit, according to the received parameter requirements.

[0061] In one embodiment, after step S305, the method further comprises: The method may further include a step of a network side device determining beamforming parameters of the network side device and / or the terminal through channel measurement, and the channel measurement may be performed according to a protocol procedure.

[0062] Thus, the embodiment of the present application provides a beam control method for an intelligent surface device, and when the active unit supports signal transmission, the active unit sends a first reference signal and a second reference signal to the network side device and the terminal, respectively obtains the first channel information and the second channel information of the active unit through channel measurement, performs channel estimation for the third channel information and the fourth channel information of the passive unit according to the first channel information and the second channel information of the active unit, and further obtains the control information of the unit array of the intelligent surface device according to the channel information of each unit. In the embodiment of the present application, the active unit is used to perform step-by-step channel estimation, thereby avoiding the complex channel estimation method for the cascaded channel of the network side device-intelligent surface device-terminal, improving the efficiency of channel measurement, realizing accurate beam control for the intelligent surface device, and supporting the generation of complex intelligent surface device transmission beams in multi-terminal multi-base station.

[0063] 5 shows a flow chart of another beam control method of an intelligent surface device according to an embodiment of the present application, as shown in FIG. 5, the method can be executed by a network side device, in other words, the method can be executed by software or hardware installed in the network side device. When the active unit supports signal reception, that is, when the active unit is an active unit with a signal receiving function, or an active unit supporting the functions of signal transmission and reception, the method may be executed in the following steps 501 to 505.

[0064] In step S501, a third reference signal is sent to the active unit.

[0065] In step S502, first channel information transmitted from the active unit is obtained, where the first channel information is obtained by the active unit through channel measurement for the third reference signal.

[0066] In one embodiment, when the active unit supports signal reception, the network side device may transmit a third reference signal to the active unit, and the active unit performs channel measurement on the received third reference signal to obtain the first channel information of the active unit.

[0067] A parameter of the third reference signal may be set by the network side device.

[0068] In one embodiment, when the RIS device obtains the first channel information of the active unit, the RIS device may transmit the first channel information to the network side device by the active unit.

[0069] In step S503, second channel information transmitted from the active unit is obtained, where the second channel information is obtained by the active unit through channel measurement for a fourth reference signal, and the fourth reference signal is transmitted from the terminal to the active unit.

[0070] In one embodiment, when the active unit supports signal reception, the terminal may transmit a fourth reference signal to the active unit, and the active unit performs channel measurement on the received fourth reference signal to obtain second channel information of the active unit.

[0071] A parameter of the fourth reference signal may be set by the network side device, and the set parameter is notified to the terminal.

[0072] The configuration parameters of the third reference signal and the fourth reference signal set by the network side device may specifically include parameters such as time-frequency resources of the reference signals, reference signal sequences and ports, precoding, etc.

[0073] In one embodiment, when the RIS device obtains the second channel information of the active unit, the RIS device may transmit the second channel information to the network side device by the active unit.

[0074] The third and fourth reference signals may adopt the same type and be transmitted in the same manner as the first and second reference signals in the above embodiment, and the overlapping parts will not be described here.

[0075] In one embodiment, the fourth reference signal may be an SSB, a CSI-RS, a DMRS for PDSCH, a DMRS for PDCCH, a PRS, or a dedicated reference signal for intelligent surface device channel measurement.

[0076] In one embodiment, the third reference signal may be an SRS, a PRACH reference signal, a DMRS for PUSCH, a side link reference signal, or a dedicated reference signal for intelligent surface device channel measurement.

[0077] In one embodiment, there may be a multipath effect in the wireless environment, i.e., objects in the environment may reflect or refract the reference signal emitted from the network side device or terminal, and the active unit may receive the same reference signal with different delays and amplitudes from different propagation paths. However, since the channel responses of different propagation paths vary randomly, the influence of the indirect path may be offset by several measurements and averaging, and only the measurement results obtained after the channel measurement of the reference signal of the direct path or the path with a strong signal, i.e., only the first channel information and the second channel information, may be retained.

[0078] In step S504, the intelligent surface device obtains third channel information and fourth channel information of a passive unit of the intelligent surface device according to the first channel information and the second channel information, where the third channel information is channel information between the network side device and the passive unit, and the fourth channel information is channel information between the terminal and the passive unit.

[0079] In one embodiment, the RIS device may perform channel estimation for the passive units in the RIS device according to the first channel information and the second channel information of the active units to obtain the third channel information and the fourth channel information of each passive unit.

[0080] Various estimation methods can be adopted to obtain the third channel information and the fourth channel information of the passive unit, and in one embodiment, the third channel information and the fourth channel information of the passive unit of the intelligent surface device are obtained based on the first channel information and the second channel information by an interpolation algorithm, which can be specifically linear interpolation, Wiener filtering, nonlinear interpolation, etc., and is not specifically limited herein.

[0081] In one embodiment, after the step of the RIS device performing channel measurements by an active unit to obtain first channel information and second channel information, the method further comprises: The method further includes reporting the first channel information and / or the second channel information to the network side device, and the network side device obtains the third channel information and the fourth channel information of the passive unit of the intelligent surface device based on the received first channel information and second channel information, and performs the method embodiment such as steps S304 and S305 of Fig. 3 to achieve the same technical effects, and the overlapping parts are not described herein.

[0082] The first channel information and / or the second channel information reported by the RIS device may take various forms, and in one embodiment may take at least one of the following forms:

[0083] Directly report primary and / or secondary channel information of all active units.

[0084] Report the relative ratio of channel information between each active unit, e.g., the first channel information H B,o and H B,o and the first channel information H B,i The second channel information H of the active unit o is reported. U,o and H U,o and the second channel information H U,i Here, active unit o is a reference unit of the set of active units, and its position in the intelligent surface is determined by the intelligent surface or by the network side device and the intelligent surface.

[0085] The relative ratio between each channel information, e.g., H B,i and H U,i Report the ratio of

[0086] Direction information of the reference signal, for example, the angle of arrival (Angle-of-Arrival, AOA) and AOZ information of the third reference signal transmitted from the network side equipment, the AOA and AOZ information of the fourth reference signal transmitted from the terminal, and the signal strength at the corresponding angles are reported.

[0087] Other channel information compression algorithms are used to report.

[0088] In one embodiment, after the RIS device accesses the cell, the method includes: and reporting instrument parameters of the RIS instrument, the instrument parameters comprising: The device type and The size of the device and The type of active unit; The location of the active unit; The number of active units, Active unit capabilities and and at least one of the following: passive unit abilities.

[0089] In step S505, the intelligent surface device obtains control information of a unit array of the intelligent surface device according to the third channel information and the fourth channel information.

[0090] In one embodiment, the network side device may send parameter requirements to the intelligent surface device, the parameter requirements being for the intelligent surface device to determine the working state of each passive unit of the intelligent surface device; Here, the parameter requirement is: The beam direction, A channel measurement result between the base station and the terminal; and the power and phase relationships of the multiple beams.

[0091] The intelligent surface device may obtain control information for the unit array of the RIS device to obtain a target transmission beam in the RIS device based on the channel information of each device unit, including the channel information of the active unit and the passive unit, or based only on the channel information of the passive unit, according to the received parameter requirements.

[0092] In one embodiment, the RIS device may further fine-tune the beam of the RIS device after determining the initial beam of the RIS device based on the control information of the acquired unit array. The network side device may arrange several finer beams for the RIS device in the control information to be transmitted, and the finer beams refer to beams with different beam phases or beam directions, and specifically can be obtained by appropriate correction based on the initial beam. The network side device may further arrange time parameters of beam fine-tuning for the RIS device, including multiple time units, each of which corresponds to one of the finer beams. For beam fine-tuning, the network side device may set beam measurement setting information, including reference signal time frequency resources, port numbers, etc., for the terminal. The network side device or the terminal transmits a reference signal, and the terminal or the network side device receives the reference signal to perform beam measurement, and determines an appropriate finer beam based on the measurement result.

[0093] In one embodiment, after step S505, the method further comprises: The method may further include a step of a network side device determining beamforming parameters of the network side device and / or the terminal through channel measurement, and the channel measurement may be performed according to a protocol procedure.

[0094] Accordingly, the embodiments of the present application provide a beam control method for an intelligent surface device. When the active unit supports signal reception, the network-side device and the terminal respectively send a third reference signal and a fourth reference signal to the active unit. Through channel measurement, the first channel information and the second channel information of the active unit are respectively obtained. The RIS device performs channel estimation on the third channel information and the fourth channel information of the passive unit based on the first channel information and the second channel information of the active unit, and further obtains control information for the unit array of the intelligent surface device based on the channel information of each unit. In the embodiments of the present application, by using the active unit to perform step-by-step channel estimation, a complex channel estimation method for the cascade channel of the network-side device-intelligent surface device-terminal is avoided, the efficiency of channel measurement is improved, accurate beam control for the intelligent surface device is realized, and the generation of complex intelligent surface device transfer beams in a multi-terminal multi-base station scenario can be supported.

[0095] It should be noted that the beam control method for the intelligent surface device provided in the embodiments of the present application may be that the execution entity is a beam control device of the intelligent surface device, or a control module for executing the beam control method of the intelligent surface device in the beam control device of the intelligent surface device. In the embodiments of the present application, taking the beam control device of the intelligent surface device executing the beam control method of the intelligent surface device as an example, the beam control device of the intelligent surface device provided in the embodiments of the present application will be described.

[0096] Based on the above embodiments, in another embodiment, the beam control method for the intelligent surface device provided in the embodiments of the present application may include the following steps 1 to 3.

[0097] In step 1, a channel measurement is performed between the network side device and the RIS device, and first channel information is obtained based on the channel measurement result.

[0098] In one embodiment, the network side device transmits a first reference signal to the active unit, and the active unit performs channel measurement on the received first reference signal to obtain first channel information.

[0099] In another embodiment, the active unit transmits a third reference signal to the network side device, and the network side device performs channel measurement based on the third reference signal to obtain the first channel information, where the transmission method of the third reference signal may adopt time division multiplexing, frequency division multiplexing, code division multiplexing, etc.

[0100] In another embodiment, the active unit transmits a reference signal in the manner of beam sweeping, and the network side equipment measures the transmitting beam of each active unit and determines the beam with the highest signal quality as the beam corresponding to the first channel information.

[0101] In step 2, the network side equipment sends control information to the RIS equipment, so that the RIS equipment obtains the working status of each unit in the unit array, and the control information may be carried in DCI, MAC CE or RRC.

[0102] In one embodiment, the control information may be a plurality of option setting information of a passive unit in a unit array of the RIS device, each of which corresponds to a plurality of beam directions of a transmission signal of the RIS device.

[0103] In another embodiment, the control information may be beam directions of the transmission signals of multiple RIS devices and the beam of the RIS active unit (corresponding to the beam acquired by the active unit sweeping the beam in step 1). The control module of the RIS device generates setting information of the passive units in the unit array of the RIS device according to the beam direction of the transmission signal of the RIS device set by the network side device based on the channel information acquired by the channel measurement in step 1 or the beam information of the RIS active unit set by the network side device.

[0104] In one embodiment, the first channel information or inter-channel relative information from the network side equipment to each active unit can be determined based on the channel measurement result or the codebook of beam sweeping in step 1. The third channel information or inter-channel relative information from the network side equipment to each passive unit can be determined by an interpolation algorithm. According to the beam direction of the transmission signal of the RIS equipment set by the network side equipment, the phase or relative phase requirement required for the passive unit in the unit array can be calculated. Based on the above information, the working state of each passive unit can be determined.

[0105] In step 3, the RIS instrument transmits the beam sweep.

[0106] The network side device transmits control information and sets multiple operating time periods for the beam of the RIS device transfer signal.

[0107] The network side device transmits a plurality of reference signals corresponding to the operating time periods of the beams of the plurality of RIS device transmission signals set.

[0108] The terminal receives a plurality of reference signals according to the setting information of the network side device, measures the signal quality, and feeds back the measurement results to the network side device and / or the RIS device.

[0109] The network side device receives the measurement results from the terminal, determines the beam direction of the RIS device, and sets the determined result in the RIS device.

[0110] The beam control device of the intelligent surface device provided in the embodiments of the present application can realize the method embodiments shown in Figures 3 to 5 and obtain the same technical effects, and the overlapping parts will not be described here.

[0111] FIG. 6 shows a structural schematic diagram of a beam control device of an intelligent surface device according to an embodiment of the present application. As shown in FIG. 6 , the device includes a first measurement module 601 , a second measurement module 602 and a control module 603 .

[0112] The first measurement module 601 is for acquiring first channel information of an active unit of an intelligent surface device, where the first channel information is channel information between the network side device and the active unit. The second measurement module 602 is for the network side device to acquire second channel information of an active unit of an intelligent surface device, where the second channel information is channel information between a terminal and the active unit. The control module 603 is for the network side device to determine control information of a unit array of the intelligent surface device based on the first channel information and the second channel information, where the unit array includes an active unit and a passive unit of the intelligent surface device.

[0113] Thus, an embodiment of the present application provides a beam control device for an intelligent surface device, obtains first channel information and second channel information of an active unit of an intelligent surface device, and then determines control information of a unit array of the intelligent surface device based on the first channel information and the second channel information, thereby improving the efficiency of channel measurement, realizing accurate beam control for the intelligent surface device, and supporting the generation of complex intelligent surface device transmission beams in multi-terminal and multi-base stations.

[0114] Based on the above embodiment, further, the control module: acquiring third channel information and fourth channel information of a passive unit of the intelligent surface device based on the first channel information and the second channel information, the third channel information being channel information between the network side device and the passive unit, and the fourth channel information being channel information between the terminal and the passive unit; and obtaining control information for a unit array of the intelligent surface device according to the third channel information and the fourth channel information.

[0115] Furthermore, when the active unit supports signal transmission, the first measurement module: receiving a first reference signal transmitted from the active unit; and acquiring first channel information of the active unit by channel measurement on the first reference signal.

[0116] Furthermore, when the active unit supports signal transmission, the second measurement module: The active unit is used for a step of receiving second channel information transmitted from the terminal, where the second channel information is obtained by the terminal through channel measurement on a second reference signal, and the second reference signal is transmitted from the active unit to the terminal.

[0117] Further, the control module is used for obtaining third channel information and fourth channel information of the passive unit of the intelligent surface device according to the first channel information and the second channel information through an interpolation algorithm.

[0118] The control module is further adapted to obtain device parameters reported from the intelligent surface device, the device parameters comprising: The device type and The size of the device and The type of active unit; The location of the active unit; The number of active units, Active unit capabilities and and at least one of the following: passive unit abilities.

[0119] Further, the control module is also used for transmitting control information of the unit array to the intelligent surface device, the control information including the working status of each passive unit of the intelligent surface device.

[0120] The control module is further used for transmitting parameter requirements to the intelligent surface device for the intelligent surface device to determine the operation state of each passive unit of the intelligent surface device; Here, the parameter requirement is: The beam direction, A channel measurement result between the base station and the terminal; and the power and phase relationships of the multiple beams.

[0121] Furthermore, the control module is also used for determining beamforming parameters of the network side equipment and / or the terminal through channel measurements.

[0122] Furthermore, the first reference signal and the second reference signal are A synchronization signal block; A channel state information reference signal; and A demodulation reference signal; A positioning reference signal; A sounding reference signal; a physical random access channel reference signal; a sidelink reference signal; and and a dedicated reference signal for intelligent surface device channel measurements.

[0123] Furthermore, the first reference signal and the second reference signal are Time division multiplexing, Frequency division multiplexing; Code division multiplexing; At least one of the following methods is adopted: beam sweeping.

[0124] Thus, the embodiment of the present application provides a beam control device for an intelligent surface device, and when the active unit supports signal transmission, the active unit sends a first reference signal and a second reference signal to the network side device and the terminal, respectively obtains the first channel information and the second channel information of the active unit through channel measurement, performs channel estimation for the third channel information and the fourth channel information of the passive unit according to the first channel information and the second channel information of the active unit, and further obtains the control information of the unit array of the intelligent surface device according to the channel information of each unit. In the embodiment of the present application, the active unit is used to perform step-by-step channel estimation, thereby avoiding the complex channel estimation method for the cascaded channel of the network side device-intelligent surface device-terminal, improving the efficiency of channel measurement, realizing accurate beam control for the intelligent surface device, and supporting the generation of complex intelligent surface device transmission beams in multi-terminal multi-base station.

[0125] Based on the above embodiment, further, when the active unit supports signal reception, the first measurement module: transmitting a third reference signal to the active unit; and acquiring first channel information transmitted from the active unit, the first channel information being acquired by the active unit through channel measurement on the third reference signal.

[0126] Furthermore, when the active unit supports signal reception, the second measurement module: The step of acquiring second channel information transmitted from the active unit is used, where the second channel information is acquired by the active unit through channel measurement on a fourth reference signal, and the fourth reference signal is transmitted from the terminal to the active unit.

[0127] Thus, the embodiment of the present application provides a beam control device for an intelligent surface device, and when the active unit supports signal reception, the network side device and the terminal respectively transmit a third reference signal and a fourth reference signal to the active unit, respectively obtain the first channel information and the second channel information of the active unit through channel measurement, and the RIS device performs channel estimation for the third channel information and the fourth channel information of the passive unit according to the first channel information and the second channel information of the active unit, and further obtains the control information of the unit array of the intelligent surface device according to the channel information of each unit. In the embodiment of the present application, the active unit is used to perform step-by-step channel estimation, thereby avoiding the complex channel estimation method for the cascaded channel of the network side device-intelligent surface device-terminal, improving the efficiency of channel measurement, realizing accurate beam control for the intelligent surface device, and supporting the generation of complex intelligent surface device transmission beams in multi-terminal multi-base station.

[0128] The beam control device of the intelligent surface device in the embodiment of the present application may be a device, a device having an operating system, or an electronic device, or may be a component, integrated circuit, or chip in a terminal. The device or electronic device may be a portable terminal or a non-portable terminal. Exemplarily, the portable terminal may include, but is not limited to, the types of terminal 11 listed above. The non-portable terminal may be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), an automated teller machine or a kiosk, etc., and is not specifically limited in the embodiment of the present application.

[0129] The beam control device of the intelligent surface device in the embodiment of the present application may be a device having an operating system, which may be an Android operating system, an iOS operating system, or other possible operating systems, and is not specifically limited in the embodiment of the present application.

[0130] The beam control device of the intelligent surface equipment provided in the embodiments of the present application can realize each process realized in the method embodiments of Figures 2 to 5 and achieve the same technical effects, and in order to avoid duplication, detailed descriptions will be omitted here.

[0131] 7 shows a flowchart of another beam control method for an intelligent surface device according to an embodiment of the present application, as shown in FIG. 7, the method can be executed by a terminal, in other words, the method can be executed by software or hardware installed in the terminal. The method may be executed in the following steps 701 and 702.

[0132] In step S701, if an active unit of an intelligent surface device supports signal transmission, the terminal obtains a second reference signal transmitted from the active unit.

[0133] In step S702, if an active unit of the intelligent surface device supports signal reception, the terminal sends a fourth reference signal to the active unit.

[0134] Here, the second reference signal or the fourth reference signal is for acquiring second channel information of the active unit, the second channel information being channel information between the terminal and the active unit, the second channel information is for determining control information of a unit array of the intelligent surface device in cooperation with the first channel information, the unit array including an active unit and a passive unit of the intelligent surface device, and the first channel information being channel information between a network side device and an active unit.

[0135] Furthermore, after the step of acquiring a second reference signal transmitted from the active unit, the method further comprises: The method further includes the step of performing a channel measurement on the second reference signal, acquiring the second channel information, and transmitting the second channel information to the network side device.

[0136] Furthermore, the method comprises: The method further includes the step of acquiring parameters of the second reference signal or the fourth reference signal set by a network side device.

[0137] Furthermore, the first reference signal and the second reference signal are A channel state information reference signal; and A demodulation reference signal; A positioning reference signal; A sounding reference signal; a physical random access channel reference signal; a sidelink reference signal; and and a dedicated reference signal for intelligent surface device channel measurements.

[0138] Furthermore, the first reference signal and the second reference signal are Time division multiplexing, Frequency division multiplexing; Code division multiplexing; At least one of the following methods is adopted: beam sweeping.

[0139] The beam control method of the intelligent surface equipment provided in the embodiments of the present application can realize each process realized in the method embodiments of Figures 2 to 5 and achieve the same technical effects, and in order to avoid duplication, detailed descriptions are omitted here.

[0140] Thus, an embodiment of the present application provides a beam control method for an intelligent surface device, which performs channel measurement based on the support status for signal transmission and / or reception of an active unit of an intelligent surface device, obtains second channel information between the active unit and a terminal, and further determines control information of the unit array of the intelligent surface device in combination with the first channel information, thereby improving the efficiency of channel measurement, realizing accurate beam control for the intelligent surface device, and supporting the generation of complex intelligent surface device transmission beams in multi-terminal and multi-base stations.

[0141] It should be noted that the execution body of the beam control method of the intelligent surface device provided in the embodiments of the present application may be a beam control device of the intelligent surface device, or a control module for executing the beam control method of the intelligent surface device in the beam control device of the intelligent surface device. In the embodiments of the present application, the beam control device of the intelligent surface device provided in the embodiments of the present application is taken as an example to execute the beam control method of the intelligent surface device by the beam control device of the intelligent surface device.

[0142] FIG. 8 shows a structural schematic diagram of a beam control device of another intelligent surface device according to an embodiment of the present application. As shown in FIG. 8 , the device includes a first acquisition module 801 and a second acquisition module 802 .

[0143] The first acquisition module 801 is for acquiring a second reference signal transmitted from an active unit of an intelligent surface device when the active unit supports signal transmission. The second acquisition module 802 is for transmitting a fourth reference signal to the active unit when the active unit of an intelligent surface device supports signal reception, where the second reference signal or the fourth reference signal is for acquiring second channel information of the active unit, the second channel information being channel information between the terminal and the active unit, the second channel information being for determining control information of a unit array of the intelligent surface device in cooperation with first channel information, the unit array including an active unit and a passive unit of the intelligent surface device, and the first channel information being channel information between a network side device and an active unit.

[0144] Furthermore, the first acquisition module is also used for performing a channel measurement on the second reference signal, acquiring the second channel information, and sending the second channel information to the network side device.

[0145] In addition, the first acquisition module or the second acquisition module is also used for acquiring parameters of the second reference signal or the fourth reference signal set by a network side device.

[0146] Furthermore, the first reference signal and the second reference signal are A channel state information reference signal; and A demodulation reference signal; A positioning reference signal; A sounding reference signal; a physical random access channel reference signal; a sidelink reference signal; and and a dedicated reference signal for intelligent surface device channel measurements.

[0147] Furthermore, the first reference signal and the second reference signal are Time division multiplexing, Frequency division multiplexing; Code division multiplexing; At least one of the following methods is adopted: beam sweeping.

[0148] Thus, an embodiment of the present application provides a beam control device for an intelligent surface device, which performs channel measurement based on the support status for signal transmission and / or reception of an active unit of an intelligent surface device, obtains second channel information between the active unit and a terminal, and further determines control information of the unit array of the intelligent surface device in combination with the first channel information, thereby improving the efficiency of channel measurement, realizing accurate beam control for the intelligent surface device, and supporting the generation of complex intelligent surface device transmission beams in multi-terminal and multi-base stations.

[0149] The beam control device of the intelligent surface device in the embodiment of the present application may be a device, a device having an operating system, or an electronic device, or may be a component, integrated circuit, or chip in a terminal. The device or electronic device may be a portable terminal or a non-portable terminal. Exemplarily, the portable terminal may include, but is not limited to, the types of terminal 11 listed above. The non-portable terminal may be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), an automated teller machine or a kiosk, etc., and is not specifically limited in the embodiment of the present application.

[0150] The beam control device of the intelligent surface equipment provided in the embodiment of the present application can realize each process realized in the method embodiment of FIG. 7 and achieve the same technical effect, and in order to avoid duplication, detailed description will be omitted here.

[0151] 9 shows a flow chart of another beam control method for an intelligent surface device according to an embodiment of the present application, and the method can be performed by an intelligent surface device, as shown in FIG 9. The method may be performed in the following steps 901 to 903.

[0152] In step S901, an intelligent surface device performs a channel measurement with an active unit and a network side device, where the channel measurement with the active unit and the network side device is performed to obtain first channel information of the active unit, and the first channel information is channel information between the network side device and the active unit.

[0153] In step S902, the intelligent surface device performs a channel measurement with an active unit and a terminal, where the channel measurement with the active unit and the terminal is performed to obtain second channel information, and the second channel information is channel information between the terminal and the active unit.

[0154] In step S903, the intelligent surface device obtains control information of a unit array, where the control information is obtained according to first channel information and second channel information, and the unit array includes an active unit and a passive unit of the intelligent surface device.

[0155] The beam control method provided in the embodiment of the present application can realize the method embodiment of each step shown in FIG. 2 and achieve the same technical effect, and the overlapping parts will not be described here.

[0156] Therefore, an embodiment of the present application provides a beam control method for an intelligent surface device, which performs channel measurement by an active unit of an intelligent surface device to obtain first channel information and second channel information, and then determines control information of a unit array of the intelligent surface device based on the first channel information and the second channel information, thereby improving the efficiency of channel measurement, realizing accurate beam control for the intelligent surface device, and supporting the generation of complex intelligent surface device transmission beams in multi-terminal and multi-base stations.

[0157] Based on the above embodiment, in one embodiment, if the active unit supports signal transmission, the step S901: The method includes transmitting a first reference signal to a network side device so that the network side device acquires first channel information by performing a channel measurement on the first reference signal.

[0158] In one embodiment, if the active unit supports signal transmission, step S902 includes: The method includes transmitting a second reference signal to a terminal so that the terminal acquires second channel information by performing a channel measurement on the second reference signal.

[0159] In one embodiment, step S903 includes: The method includes a step of receiving control information for the unit array transmitted from the network side device.

[0160] In one embodiment, the method comprises: The method further includes the step of reporting device parameters of the intelligent surface device to a network side device, the device parameters including: The device type and The size of the device and The type of active unit; The location of the active unit; The number of active units, Active unit capabilities and and at least one of the following: passive unit abilities.

[0161] In one embodiment, the first and second reference signals are A synchronization signal block; A channel state information reference signal; and A demodulation reference signal; A positioning reference signal; A sounding reference signal; a physical random access channel reference signal; a sidelink reference signal; and and a dedicated reference signal for intelligent surface device channel measurements.

[0162] In one embodiment, the first and second reference signals are Time division multiplexing, Frequency division multiplexing; Code division multiplexing; At least one of the following methods is adopted: beam sweeping.

[0163] The beam control method provided in the embodiment of the present application can realize the method embodiments of each step shown in Figures 3 and 4 to achieve the same technical effects, and the overlapping parts will not be described here.

[0164] Thus, the embodiment of the present application provides a beam control method for an intelligent surface device, and when the active unit supports signal transmission, the active unit sends a first reference signal and a second reference signal to the network side device and the terminal, respectively obtains the first channel information and the second channel information of the active unit through channel measurement, performs channel estimation for the third channel information and the fourth channel information of the passive unit according to the first channel information and the second channel information of the active unit, and further obtains the control information of the unit array of the intelligent surface device according to the channel information of each unit. In the embodiment of the present application, the active unit is used to perform step-by-step channel estimation, thereby avoiding the complex channel estimation method for the cascaded channel of the network side device-intelligent surface device-terminal, improving the efficiency of channel measurement, realizing accurate beam control for the intelligent surface device, and supporting the generation of complex intelligent surface device transmission beams in multi-terminal multi-base station.

[0165] Based on the above embodiment, in one embodiment, if the active unit supports signal reception, step S901: The method includes the steps of receiving a third reference signal transmitted from a network side device, and acquiring first channel information by performing channel measurement on the third reference signal.

[0166] In one embodiment, if the active unit supports signal reception, step S902 includes: The method includes receiving a fourth reference signal transmitted from a terminal, and acquiring second channel information by channel measurement for the fourth reference signal.

[0167] In one embodiment, the method comprises: The method further includes reporting the first channel information and / or the second channel information to the network side device.

[0168] In one embodiment, step S903 includes: Obtaining third channel information and fourth channel information of a passive unit of the intelligent surface device according to the first channel information and the second channel information; and obtaining control information of a unit array of the intelligent surface device, the control information including the working status of each passive unit of the intelligent surface device, based on the third channel information and the fourth channel information.

[0169] In one embodiment, the step of obtaining third channel information and fourth channel information of a passive unit of the intelligent surface device based on the first channel information and the second channel information includes: The method includes obtaining third channel information and fourth channel information of the passive unit of the intelligent surface device according to the first channel information and the second channel information through an interpolation algorithm.

[0170] In one embodiment, the method comprises: The intelligent surface device further includes receiving parameter requirements sent from the network side device for determining the working state of each passive unit of the intelligent surface device; Here, the parameter requirement is: The beam direction, A channel measurement result between the base station and the terminal; and the power and phase relationships of the multiple beams.

[0171] In one embodiment, the method comprises: The method further includes the step of reporting device parameters of the intelligent surface device to a network side device, the device parameters including: The device type and The size of the device and The type of active unit; The location of the active unit; The number of active units, Active unit capabilities and and at least one of the following: passive unit abilities.

[0172] In one embodiment, the first and second reference signals are A synchronization signal block; A channel state information reference signal; and A demodulation reference signal; A positioning reference signal; A sounding reference signal; a physical random access channel reference signal; a sidelink reference signal; and and a dedicated reference signal for intelligent surface device channel measurements.

[0173] In one embodiment, the first and second reference signals are Time division multiplexing, Frequency division multiplexing; Code division multiplexing; At least one of the following methods is adopted: beam sweeping.

[0174] The beam control method of the embodiment of the present application realizes the method embodiment of each step shown in FIG. 5, and can achieve the same technical effect, and the overlapping parts will not be described here.

[0175] Accordingly, the embodiments of the present application provide a beam control method for an intelligent surface device. When the active unit supports signal reception, the network-side device and the terminal respectively send a third reference signal and a fourth reference signal to the active unit. Through channel measurement, the first channel information and the second channel information of the active unit are respectively obtained. The RIS device performs channel estimation on the third channel information and the fourth channel information of the passive unit based on the first channel information and the second channel information of the active unit, and further obtains the control information of the unit array of the intelligent surface device based on the channel information of each unit. In the embodiments of the present application, by using the active unit to perform step-by-step channel estimation, a complex channel estimation method for the cascade channel of the network-side device-intelligent surface device-terminal is avoided, the efficiency of channel measurement is improved, accurate beam control for the intelligent surface device is realized, and the generation of complex intelligent surface device transfer beams in multi-terminal multi-base stations can be supported.

[0176] FIG. 10 shows a structural schematic diagram of another beam control device for an intelligent surface device according to an embodiment of the present application. As shown in FIG. 10, the device includes a first communication module 1001, a second communication module 1002, and an execution module 1003.

[0177] The first communication module 1001 is for performing channel measurement by an active unit and a network side device, where the channel measurement by the active unit and the network side device is performed to obtain first channel information of the active unit, and the first channel information is channel information between the network side device and the active unit. The second communication module 1002 is for performing channel measurement by an active unit and a terminal, where the channel measurement by the active unit and the terminal is performed to obtain second channel information, and the second channel information is channel information between the terminal and the active unit. The execution module 1003 is for obtaining control information of a unit array, where the control information is obtained based on first channel information and second channel information, and the unit array includes an active unit and a passive unit of the intelligent surface device.

[0178] Thus, an embodiment of the present application provides a beam control device for an intelligent surface device, which performs channel measurement by an active unit to obtain first channel information and second channel information, and then determines control information of the unit array of the intelligent surface device based on the first channel information and the second channel information, thereby improving the efficiency of channel measurement, realizing accurate beam control for the intelligent surface device, and supporting the generation of complex intelligent surface device transmission beams in multi-terminal and multi-base stations.

[0179] Based on the above embodiment, the first communication module is further used for the step of transmitting the first reference signal to the network side device, so that the network side device obtains first channel information by channel measurement on the first reference signal.

[0180] In one embodiment, when the active unit supports signal transmission, the second communication module is used for a step of transmitting the second reference signal to the terminal so that the terminal acquires second channel information by channel measurement for the second reference signal.

[0181] In one embodiment, the execution module is used for a step of receiving control information of a unit array transmitted from a network side device.

[0182] In one embodiment, the execution module is also used to report device parameters of the intelligent surface device to a network side device, and the device parameters include: The device type and The size of the device and The type of active unit; The location of the active unit; The number of active units, Active unit capabilities and and at least one of the following: passive unit abilities.

[0183] In one embodiment, the first and second reference signals are A synchronization signal block; A channel state information reference signal; and A demodulation reference signal; A positioning reference signal; A sounding reference signal; a physical random access channel reference signal; a sidelink reference signal; and and a dedicated reference signal for intelligent surface device channel measurements.

[0184] In one embodiment, the first and second reference signals are Time division multiplexing, Frequency division multiplexing; Code division multiplexing; At least one of the following methods is adopted: beam sweeping.

[0185] Thus, the embodiment of the present application provides a beam control device for an intelligent surface device, and when the active unit supports signal transmission, the active unit sends a first reference signal and a second reference signal to the network side device and the terminal, respectively obtains the first channel information and the second channel information of the active unit through channel measurement, performs channel estimation for the third channel information and the fourth channel information of the passive unit according to the first channel information and the second channel information of the active unit, and further obtains the control information of the unit array of the intelligent surface device according to the channel information of each unit. In the embodiment of the present application, the active unit is used to perform step-by-step channel estimation, thereby avoiding the complex channel estimation method for the cascaded channel of the network side device-intelligent surface device-terminal, improving the efficiency of channel measurement, realizing accurate beam control for the intelligent surface device, and supporting the generation of complex intelligent surface device transmission beams in multi-terminal multi-base station.

[0186] Based on the above embodiment, further, when the active unit supports signal reception, the first communication module is used for the step of receiving a third reference signal transmitted from a network side equipment, and acquiring first channel information by channel measurement for the third reference signal.

[0187] In one embodiment, when the active unit supports signal reception, the second communication module is used for the step of receiving a fourth reference signal transmitted from a terminal and acquiring second channel information by channel measurement for the fourth reference signal.

[0188] In one embodiment, the execution module is also used for reporting the first channel information and / or the second channel information to the network side device.

[0189] In one embodiment, the execution module obtains third channel information and fourth channel information of a passive unit of the intelligent surface device according to the first channel information and the second channel information; and obtaining control information of the unit array of the intelligent surface device, including the working status of each passive unit of the intelligent surface device, based on the third channel information and the fourth channel information.

[0190] In one embodiment, the execution module is used for the step of obtaining third channel information and fourth channel information of a passive unit of the intelligent surface device through an interpolation algorithm based on the first channel information and the second channel information.

[0191] In one embodiment, the execution module is also used to receive parameter requirements sent from the network side device for the intelligent surface device to determine the operation state of each passive unit of the intelligent surface device; Here, the parameter requirement is: The beam direction, A channel measurement result between the base station and the terminal; and the power and phase relationships of the multiple beams.

[0192] In one embodiment, the execution module is also used to report device parameters of the intelligent surface device to a network side device, and the device parameters include: The device type and The size of the device and The type of active unit; The location of the active unit; The number of active units, Active unit capabilities and and at least one of the following: passive unit abilities.

[0193] In one embodiment, the first and second reference signals are A synchronization signal block; A channel state information reference signal; and A demodulation reference signal; A positioning reference signal; A sounding reference signal; a physical random access channel reference signal; a sidelink reference signal; and and a dedicated reference signal for intelligent surface device channel measurements.

[0194] In one embodiment, the first and second reference signals are Time division multiplexing, Frequency division multiplexing; Code division multiplexing; At least one of the following methods is adopted: beam sweeping.

[0195] Thus, the embodiment of the present application provides a beam control device for an intelligent surface device, and when the active unit supports signal reception, the network side device and the terminal respectively transmit a third reference signal and a fourth reference signal to the active unit, respectively obtain the first channel information and the second channel information of the active unit through channel measurement, and the RIS device performs channel estimation for the third channel information and the fourth channel information of the passive unit according to the first channel information and the second channel information of the active unit, and further obtains the control information of the unit array of the intelligent surface device according to the channel information of each unit. In the embodiment of the present application, the active unit is used to perform step-by-step channel estimation, thereby avoiding the complex channel estimation method for the cascaded channel of the network side device-intelligent surface device-terminal, improving the efficiency of channel measurement, realizing accurate beam control for the intelligent surface device, and supporting the generation of complex intelligent surface device transmission beams in multi-terminal multi-base station.

[0196] The beam control device of the intelligent surface device in the embodiment of the present application may be a device, a device having an operating system or an electronic device, and is not specifically limited in the embodiment of the present application.

[0197] The beam control device of the intelligent surface equipment provided in the embodiment of the present application can realize each process realized in the method embodiment of FIG. 9 and achieve the same technical effect, and in order to avoid duplication, detailed description will be omitted here.

[0198] Optionally, as shown in Fig. 11, the embodiment of the present application further provides a communication device 1100, which includes a processor 1101, a memory 1102, and a program or command stored in the memory 1102 and executable on the processor 1101, for example, when the communication device 1100 is a terminal, the program or command is executed by the processor 1101 to realize each process of the embodiment of the beam control method of the intelligent surface device, and the same technical effect can be achieved. When the communication device 1100 is a network side device, the program or command is executed by the processor 1101 to realize each process of the embodiment of the beam control method of the intelligent surface device, and the same technical effect can be achieved, and detailed description is omitted here to avoid duplication.

[0199] An embodiment of the present application further provides a network side device, which includes a processor and a communication interface, the processor is for determining control information of the unit array of the intelligent surface device according to the first channel information and the second channel information, and the communication interface is for obtaining the first channel information of the active unit of the intelligent surface device and also for obtaining the second channel information of the active unit of the intelligent surface device. The embodiment of the network side device corresponds to the method embodiment of the above network side device, and each implementation process and realization form of the above method embodiment can be applied to the embodiment of the network side device, and the same technical effects can be achieved.

[0200] Specifically, the embodiments of the present application further provide a network-side device. As shown in FIG. 12, the network-side device 1200 includes an antenna 121, a radio frequency device 122, and a baseband device 123. The antenna 121 is connected to the radio frequency device 122. In the uplink direction, the radio frequency device 122 receives information via the antenna 121 and transmits the received information to the baseband device 123 for processing. In the downlink direction, the baseband device 123 processes the information to be transmitted, and transmits it to the radio frequency device 122. The radio frequency device 122 processes the received information and then transmits it via the antenna 121.

[0201] The above frequency band processing device may be in the baseband device 123. The method executed by the network-side device in the above embodiments can be implemented by the baseband device 123. The baseband device 123 includes a processor 124 and a memory 125.

[0202] The baseband device 123 may include, for example, at least one baseband board with a plurality of chips installed. As shown in FIG. 12, one of the chips is, for example, connected to the memory 125 to call a program in the memory 125 and is the processor 124 that executes the operations of the network-side device shown in the above method embodiments.

[0203] The baseband device 123 may further include a network interface 126 for communicating with the radio frequency device 122. The interface is, for example, a common public radio interface (CPRI).

[0204] Specifically, the network-side device of the embodiments of the present application further includes commands or programs stored in the memory 125 and executable on the processor 124. The processor 124 calls the commands or programs in the memory 125 to execute the methods executed by the modules shown in FIG. 6, and the same technical effects can be achieved. To avoid repetition, detailed descriptions are omitted here.

[0205] The embodiment of the present application further provides a terminal, the terminal including a processor and a communication interface, the communication interface is for obtaining a second reference signal sent from an active unit of an intelligent surface device when the active unit supports signal transmission, and for sending a fourth reference signal to the active unit when the active unit of an intelligent surface device supports signal reception. The terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and realization form of the above-mentioned method embodiment can be applied to the terminal embodiment, and the same technical effect can be achieved. Specifically, FIG. 13 is a hardware structure schematic diagram of a terminal for implementing the embodiment of the present application.

[0206] The terminal 1300 includes at least some of the following components, but is not limited to: a radio frequency unit 1301, a network module 1302, an audio output unit 1303, an input unit 1304, a sensor 1305, a display unit 1306, a user input unit 1307, an interface unit 1308, a memory 1309, and a processor 1310.

[0207] Those skilled in the art can understand that the terminal 1300 may further include a power source (e.g., a battery) for powering each component, and the power source may be logically connected to the processor 1310 through a power management system, and the power management system may further realize functions such as charge / discharge management and power consumption management. The structure of the terminal shown in FIG. 13 is not intended to limit the terminal, and the terminal may include more or fewer components than those shown in the figure, or a combination of some components, or a different component arrangement, and detailed descriptions thereof will be omitted here.

[0208] It should be understood that in the embodiment of the present application, the input unit 1304 may include a graphics processing unit (GPU) 13041 for processing image data of still or video captured by an image capture device (e.g., a camera) in a video capture mode or an image capture mode, and a microphone 13042. The display unit 1306 may include a display panel 13061, which may be arranged in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1307 includes a touch panel 13071 and other input devices 13072. The touch panel 13071 is also called a touch screen. The touch panel 13071 may include two parts: a touch detection device and a touch controller. The other input devices 13072 may include, but are not limited to, a physical keyboard, a function button (e.g., a volume control button, a switch button, etc.), a trackball, a mouse, and an operation lever, and detailed description thereof will be omitted here.

[0209] In the embodiment of the present application, the high frequency unit 1301 receives downlink data from the network side device, processes it in the processor 1310, and transmits uplink data to the network side device. Typically, the high frequency unit 1301 includes, but is not limited to, an antenna, at least one amplifier, a receiver-transmitter, a coupler, a low-noise amplifier, a duplexer, etc.

[0210] The memory 1309 can be used to store software programs or commands and various data. The memory 1309 may mainly include a program or command storage area capable of storing an operating system, an application or command required for at least one function (e.g., a sound playback function, an image playback function, etc.), and a data storage area. The memory 1309 may also include a high-speed random access memory, and may further include a non-transitory memory. Among them, the non-transitory memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically erasable programmable read-only memory (Electrically EPROM, EEPROM), or a flash memory. For example, at least one magnetic disk storage device, a flash memory device, or other non-transitory solid-state storage device may be included. The high-speed random access memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM), and a direct Rambus random access memory (DRRAM). The memory 1309 in the embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

[0211] The processor 1310 may include one or more processing units. Optionally, the processor 1310 may be integrated with an application processor that mainly processes an operating system, a user interface, and applications or commands, and a modem processor that mainly processes wireless communication, such as a baseband processor. It is understandable that the modem processor may not be integrated with the processor 1310.

[0212] Wherein, the high frequency unit 1301 is for obtaining a second reference signal transmitted from an active unit of the intelligent surface device when the active unit supports signal transmission; The radio frequency unit 1301 is further for transmitting a fourth reference signal to an active unit of the intelligent surface device, when the active unit supports signal reception.

[0213] Further, the processor 1310 is for performing channel measurements on the second reference signal to obtain the second channel information.

[0214] The high frequency unit 1301 is further for transmitting the second channel information to the network side device.

[0215] Furthermore, the high frequency unit 1301 is for acquiring parameters of the second reference signal or the fourth reference signal set by a network side device.

[0216] Furthermore, the first reference signal and the second reference signal are A channel state information reference signal; and A demodulation reference signal; A positioning reference signal; A sounding reference signal; a physical random access channel reference signal; a sidelink reference signal; and and a dedicated reference signal for intelligent surface device channel measurements.

[0217] Furthermore, the first and second reference signals employ at least one of the following methods: time division multiplexing, frequency division multiplexing, code division multiplexing, and beam sweeping.

[0218] As a result, the embodiments of the present application can improve the efficiency of channel measurement, realize accurate beam control for intelligent surface devices, and support the generation of complex intelligent surface device transmission beams in multi-terminal and multi-base stations.

[0219] An embodiment of the present application further provides a readable storage medium, in which a program or command is stored, and when the program or command is executed by a processor, each process of the embodiment of the beam control method of the above-mentioned intelligent surface device is realized, and the same technical effect can be achieved, and in order to avoid duplication, detailed description will be omitted here.

[0220] Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, etc.

[0221] An embodiment of the present application further provides a chip, the chip including a processor and a communication interface, the communication interface and the processor are coupled to each other, and the processor executes programs or commands to realize each process of the embodiment of the beam control method of the above-mentioned intelligent surface equipment, and can achieve the same technical effects, and in order to avoid duplication, detailed descriptions are omitted here.

[0222] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system - level chip, system - on - chip, chip - system, or system - on - a - chip, etc.

[0223] It should be noted that in this specification, the term "comprising", "consisting of", or any other variation thereof is intended to include non - exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, the elements limited by the phrase "comprising one..." do not exclude the further presence of the same other elements in the process, method, article, or apparatus that includes such elements. Also, it should be pointed out that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order illustrated or considered, and may also include performing functions substantially simultaneously or in the reverse order according to such functions. For example, the described method may be executed in an order different from that described, and various steps may be added, omitted, or combined. Also, the features described with reference to some examples may be combined in other examples.

[0224] From the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above - mentioned examples can be realized in the form of a combination of software and the necessary common hardware platform. Of course, it may also be realized by hardware, but in many cases, the former is a more preferred embodiment. Based on such an understanding, the technical solution of this application, in essence or the part that contributes to the prior art, can be implemented in the form of a computer software product. The computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes a plurality of commands for causing a terminal (which may be a mobile phone, computer, server, air conditioner, or network - side device, etc.) to execute the methods described in each embodiment of this application.

[0225] Although the examples of the present application have been described above with reference to the drawings, the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative and not limiting. Based on the suggestions of this application, many forms that a person skilled in the art can make without departing from the spirit of the present application and the scope of protection of the claims are all within the scope of protection of the present application.

Claims

1. A network side device acquires first channel information of an active unit of an intelligent surface device, the first channel information being channel information between the network side device and the active unit; The network side device acquires second channel information of an active unit of an intelligent surface device, the second channel information being channel information between a terminal and the active unit; A beam control method for an intelligent surface device, comprising: a step in which the network side device determines control information for a unit array of the intelligent surface device based on the first channel information and the second channel information, the unit array including an active unit and a passive unit of the intelligent surface device.

2. The step of determining control information of the unit array of the intelligent surface device according to the first channel information and the second channel information includes: acquiring third channel information and fourth channel information of a passive unit of the intelligent surface device according to the first channel information and the second channel information, the third channel information being channel information between the network side device and the passive unit, and the fourth channel information being channel information between the terminal and the passive unit; The method of claim 1 , further comprising: obtaining control information for a unit array of the intelligent surface device based on the third channel information and the fourth channel information.

3. When the active unit supports signal transmission, obtaining first channel information of the active unit of the intelligent surface device includes: receiving a first reference signal transmitted from the active unit; and acquiring first channel information of the active unit by channel measurement on the first reference signal; Or, When the active unit supports signal transmission, obtaining second channel information of the active unit of the intelligent surface device includes:

3. The method according to claim 1, further comprising the step of receiving second channel information transmitted from the terminal, the second channel information being acquired by the terminal through channel measurements on a second reference signal, the second reference signal being transmitted from the active unit to the terminal.

4. When the active unit supports signal reception, obtaining first channel information of the active unit of the intelligent surface device includes: transmitting a third reference signal to the active unit; acquiring first channel information transmitted from the active unit, the first channel information being acquired by the active unit through channel measurement on the third reference signal; Or, When the active unit supports signal reception, obtaining second channel information of the active unit of the intelligent surface device includes:

3. The method of claim 1, further comprising the step of acquiring second channel information transmitted from the active unit, the second channel information being acquired by the active unit through channel measurements on a fourth reference signal, the fourth reference signal being transmitted from the terminal to the active unit.

5. The step of obtaining third channel information and fourth channel information of the passive unit of the intelligent surface device based on the first channel information and the second channel information includes: The method according to claim 2 , further comprising: obtaining third channel information and fourth channel information of a passive unit of the intelligent surface device according to the first channel information and the second channel information by an interpolation algorithm.

6. Before the step of the network side device acquiring the first channel information and / or the second channel information of the active unit of the intelligent surface device, The method further includes obtaining reported device parameters from the intelligent surface device, the device parameters comprising: The device type and The size of the device and The type of active unit; The location of the active unit; The number of active units, Active unit capabilities and The method of claim 1 or 2, further comprising at least one of: a) a capability of a passive unit;

7. After the step of determining the control information of the unit array of the intelligent surface device, sending control information of the unit array, including the working status of each passive unit of the intelligent surface device, to the intelligent surface device; Or, The method according to claim 1 or 2, further comprising the step of determining beamforming parameters of the network side equipment and / or the terminal by channel measurements.

8. The method further includes the step of transmitting parameter requirements to the intelligent surface device for determining an operation state of each passive unit of the intelligent surface device; The parameter requirements are: The beam direction, A channel measurement result between the network side device and the terminal; 3. The method of claim 1 or 2, further comprising at least one of: a power and a phase relationship of the multiple beams.

9. The first reference signal and the second reference signal are A synchronization signal block; A channel state information reference signal; and A demodulation reference signal; A positioning reference signal; A sounding reference signal; a physical random access channel reference signal; a sidelink reference signal; and a dedicated reference signal for measuring an intelligent surface device channel; Or, The first reference signal and the second reference signal are Time division multiplexing, Frequency division multiplexing; Code division multiplexing; The method of claim 3 , further comprising at least one of the following techniques: beam sweeping.

10. When an active unit of the intelligent surface device supports signal transmission, the terminal acquires a second reference signal transmitted from the active unit; When an active unit of the intelligent surface device supports signal reception, the terminal transmits a fourth reference signal to the active unit; A beam control method for an intelligent surface device, wherein the second reference signal or the fourth reference signal is for acquiring second channel information of the active unit, the second channel information being channel information between the terminal and the active unit, the second channel information being for determining control information of a unit array of the intelligent surface device in cooperation with the first channel information, the unit array including an active unit and a passive unit of the intelligent surface device, and the first channel information being channel information between a network side device and the active unit.

11. After the step of acquiring a second reference signal transmitted from the active unit, The method further includes a step of performing a channel measurement on the second reference signal, acquiring the second channel information, and transmitting the second channel information to the network side device; Or, The method according to claim 10 , further comprising the step of obtaining a parameter of the second reference signal or the fourth reference signal set by a network side device.

12. A step of an intelligent surface device performing a channel measurement by an active unit and a network side device, the channel measurement by the active unit and the network side device is performed to obtain first channel information of the active unit, and the first channel information is channel information between the network side device and the active unit; A step of performing a channel measurement by the intelligent surface device with an active unit and a terminal, the channel measurement by the active unit and the terminal is performed to obtain second channel information, and the second channel information is channel information between the terminal and the active unit; A beam control method for an intelligent surface device, comprising: a step of an intelligent surface device acquiring control information for a unit array, the control information being acquired based on first channel information and second channel information, the unit array including an active unit and a passive unit of the intelligent surface device.

13. When the active unit supports signal transmission, the step of performing channel measurement by the active unit and a network side device includes: transmitting a first reference signal to a network side device so that the network side device acquires first channel information by channel measurement on the first reference signal; Or, When the active unit supports signal transmission, the step of performing channel measurements by the active unit and the terminal includes: The method of claim 12, comprising transmitting a second reference signal to a terminal so that the terminal acquires second channel information by channel measurements on the second reference signal.

14. When the active unit supports signal reception, the step of performing channel measurement by the active unit and a network side device includes: receiving a third reference signal transmitted from a network side device, and acquiring first channel information by channel measurement of the third reference signal; Or, When the active unit supports signal reception, the step of performing channel measurements by the active unit and the terminal includes: The method according to claim 12, comprising the steps of receiving a fourth reference signal transmitted from a terminal and acquiring second channel information by channel measurement on the fourth reference signal.

15. The method further includes a step of reporting the first channel information and / or the second channel information to the network side device. The step of acquiring control information of the unit array includes: receiving control information of the unit array transmitted from a network side device; Or, The intelligent surface device further includes receiving parameter requirements sent from the network side device for determining the working state of each passive unit of the intelligent surface device; The parameter requirements are: The beam direction, A channel measurement result between the network side device and the terminal; and a power and phase relationship of the plurality of beams; Or, The method further includes the step of reporting device parameters of the intelligent surface device to a network side device, the device parameters including: The device type and The size of the device and The type of active unit; The location of the active unit; The number of active units, Active unit capabilities and and a capability of a passive unit.

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